Home / 12,435.40-18,650.42-4,113.44

Finding the Fourth Proportional to 12,435.40, 18,650.42 and 4,113.44

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Solution

The fourth proportional to 12,435.40, 18,650.42 and 4,113.44 is: 6,169.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,435.40 : 18,650.42 = 4,113.44 : x
  2. Step 2: Convert to fraction form
    12,435.40/18,650.42 = 4,113.44/x
  3. Step 3: Cross multiply
    12,435.40x = 18,650.42 × 4,113.44
  4. Step 4: Simplify right side
    12,435.40x = 76,717,383.64
  5. Step 5: Solve for x
    x = 76,717,383.64/12,435.40
  6. Step 6: Final answer
    x = 6,169.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.